(UVA+UVB)&sativa
- Thread starter Phaeton
- Start date
I have a mini UVb experiment going as it turns out. I have an overgrown grow happening, and there's one smaller cola off to the side that's in front of the reptile UV bulb. Closer than all the others. So far the hairs are nearly absent, but no hermie from stress. Temps are low 70s.
I'm labeling that bud through the cure process and see if it's any different from the rest of the buds on that plant after curing.
I'm labeling that bud through the cure process and see if it's any different from the rest of the buds on that plant after curing.
S
sallyforthDeleted member 75382
Extremely interesting thread. About time a good experiment was done.
I have noticed the same with cannabis grown at high altitude being stronger than those grown in lower altitudes.
Interesting to see how this indoor experiment works.
Another question is do the flowers need to be fertilized for the trichomes to be fully realized ? In other words the resulting cannabis is more psychadelic and a more profound (spiritual) high.
Excuse my ramblings I'm high !!
I have noticed the same with cannabis grown at high altitude being stronger than those grown in lower altitudes.
Interesting to see how this indoor experiment works.
Another question is do the flowers need to be fertilized for the trichomes to be fully realized ? In other words the resulting cannabis is more psychadelic and a more profound (spiritual) high.
Excuse my ramblings I'm high !!
S
sallyforthDeleted member 75382
Sorry I mean fertlizing with cannabis pollen to produce seed.....I know it goe's against the norm but at high altitude resin is produced in abundunce to protect the seeds in the bracts.
Plant was trimmed and cut on day 41, the plant insisted it was ready.
Buds remained a solid 10% smaller and at 800 mw/cm2 the hair count was down about 15% (at 1100 the buds had 2 maybe 3 hairs each). Trichome's were up about 10% but thin, weight of trichomes probably just under control, hard to really tell, more but smaller.
The bulk of the plant is hanging, but the oops buds that accidentally got cut are dry and being smoked.
Smoking is so subjective. Definitely different, really makes my nose run, and eyes are affected more. I don't feel more stoned but I ignore the pipe after one hit, usually take two or three before ignoring it. I've smoked some for two days, but today is fresh and I have that one toke in without distractions.
To put this in perspective. I have a new 6 bulb polished stainless (reflects UVB) T8 fixture on the floor next to me and DrsFosterandSmith are sending 6 x 48" Reptisun 10 bulbs to go into it.
The UVB supplement light setup is $300 per side, one side down and one to go. For what is happening in the marijuana I find that more than a fair trade.
This is the fourth major change in my main budroom in the last year. Putting in the test budroom and actually using it and incorporating the results has increased production 18% and now I am taking a large leap in quality.
I love my job. And I still haven't taken that second toke.
Buds remained a solid 10% smaller and at 800 mw/cm2 the hair count was down about 15% (at 1100 the buds had 2 maybe 3 hairs each). Trichome's were up about 10% but thin, weight of trichomes probably just under control, hard to really tell, more but smaller.
The bulk of the plant is hanging, but the oops buds that accidentally got cut are dry and being smoked.
Smoking is so subjective. Definitely different, really makes my nose run, and eyes are affected more. I don't feel more stoned but I ignore the pipe after one hit, usually take two or three before ignoring it. I've smoked some for two days, but today is fresh and I have that one toke in without distractions.
To put this in perspective. I have a new 6 bulb polished stainless (reflects UVB) T8 fixture on the floor next to me and DrsFosterandSmith are sending 6 x 48" Reptisun 10 bulbs to go into it.
The UVB supplement light setup is $300 per side, one side down and one to go. For what is happening in the marijuana I find that more than a fair trade.
This is the fourth major change in my main budroom in the last year. Putting in the test budroom and actually using it and incorporating the results has increased production 18% and now I am taking a large leap in quality.
I love my job. And I still haven't taken that second toke.
Off the subject of UV but I ran a potency test on a sativa versus fertilized sativa, yes the fertilized plant produced an almost indica couchlock. Potency was way up, but half the weight was seeds. Indica makes couchlock much easier.
I got the Solarmeter 6.2 and found the fluoro does not produce enough uvb to matter. 40 microwatts at 1 inch was the best I could get. I need around 300 to get to midday sun level.
I am considering getting a small reptile light to put in my 2x2x5' tent. From reading the cmh does not put out enough uvb to replicate outdoor sun, so that is out for now.
You said the lower uvb was damaging. Knna who I have not seen posting for a while, said the lower uvb was likely the main factor in potency increase. Trying to figure out which bulb to buy, has to be short, like 20 inches or less.
I am considering getting a small reptile light to put in my 2x2x5' tent. From reading the cmh does not put out enough uvb to replicate outdoor sun, so that is out for now.
You said the lower uvb was damaging. Knna who I have not seen posting for a while, said the lower uvb was likely the main factor in potency increase. Trying to figure out which bulb to buy, has to be short, like 20 inches or less.
That meter is next on my list, I use math and the manufacturer's graphs. Tedious but it gets me there. Bought a quantum meter first, I absolutely could not balance fluorescent and discharge intensities by human eyeball.
http://www.drsfostersmith.com/product/prod/.cfm?pcatid=18318
This is where I get my UVB, 6" to 48" and CFL's too.
http://www.uvguide.co.uk/phototherapyphosphor-tests.htm
This discusses the wavelength differences and give a standard for biological activity.
http://www.drsfostersmith.com/product/prod/.cfm?pcatid=18318
This is where I get my UVB, 6" to 48" and CFL's too.
http://www.uvguide.co.uk/phototherapyphosphor-tests.htm
This discusses the wavelength differences and give a standard for biological activity.
Just a last note before the test room is changed. There is a two plant tray of northern lights due to harvest new year's day. The UVB was dropped to 600 mw, the hair count is way up over the 850 mw plant of the same age. The reddish brown core is still there in the growing pistols. Good sign.
I left one side unlit to see if the effect is systemic or needs direct UVB bombardment.
The test room is going LED, the cost was a touch more than the UVB equipment. But the main lights will have an actual draw of 2700 watts straight LED, enough for a genuine test.
With up to three weeks to ship (?) there probably won't be a LED thread going until after new year.
I left one side unlit to see if the effect is systemic or needs direct UVB bombardment.
The test room is going LED, the cost was a touch more than the UVB equipment. But the main lights will have an actual draw of 2700 watts straight LED, enough for a genuine test.
With up to three weeks to ship (?) there probably won't be a LED thread going until after new year.
I cannot resist, time on my hands.
The last of the UVB room grow finishes in three weeks, The UVB level was set the same as the new LED room will have, closer to sea level in the tropics. This will give me a heads up if more is needed to maintain potency for napping level increase.
All that time on my hands, it is being put to use building one of the five lobes of the new grow area.
The polished reflector is for UVB (300-370), two Zilla Desert 50, two Reptisun 10 with two Flora Sun (611-670).
The 520 watt LED units (336X PRO) are 25" x 25" and go above the 24" wide T8 white reflectors. I have a Kill-A-Watt, the number will be verified and published.
In the white four bulb T8 is two Flora Sun and two residential 5000K.
The T5 is for two each Roseate 650 and Red Sun (630 & 690).
In the center with a 140 degree reflector is a 400 watt Radium 20,000K spreading a message of sunshine over everything, the LED's quit at 440 nm, all the UV is from the side, this covers that transition zone 390-440 still used from above.
I cannot come near putting down all the nuances of the last year's tests' results, but this overly complicated light structure is based on grow tests from the very room it is being built in.
My oldest daughter was visiting, she admitted being warned, "All dad's going to talk about is lights." Sigh.
No dodging the bullet, this will work as planned or it will not work as planned.
I put my money where my mouth is, I sure hope it is not followed by my foot.
One more post to go when the medium level UVB plants get harvested first week of January.
Slight concern, the reddish brown core in the hairs is fading this time. It is still there but faint. May or may not be tied to the sedative effect. This is why I squeezed in one last test.
The last of the UVB room grow finishes in three weeks, The UVB level was set the same as the new LED room will have, closer to sea level in the tropics. This will give me a heads up if more is needed to maintain potency for napping level increase.
All that time on my hands, it is being put to use building one of the five lobes of the new grow area.
The polished reflector is for UVB (300-370), two Zilla Desert 50, two Reptisun 10 with two Flora Sun (611-670).
The 520 watt LED units (336X PRO) are 25" x 25" and go above the 24" wide T8 white reflectors. I have a Kill-A-Watt, the number will be verified and published.
In the white four bulb T8 is two Flora Sun and two residential 5000K.
The T5 is for two each Roseate 650 and Red Sun (630 & 690).
In the center with a 140 degree reflector is a 400 watt Radium 20,000K spreading a message of sunshine over everything, the LED's quit at 440 nm, all the UV is from the side, this covers that transition zone 390-440 still used from above.
I cannot come near putting down all the nuances of the last year's tests' results, but this overly complicated light structure is based on grow tests from the very room it is being built in.
My oldest daughter was visiting, she admitted being warned, "All dad's going to talk about is lights." Sigh.
No dodging the bullet, this will work as planned or it will not work as planned.
I put my money where my mouth is, I sure hope it is not followed by my foot.
One more post to go when the medium level UVB plants get harvested first week of January.
Slight concern, the reddish brown core in the hairs is fading this time. It is still there but faint. May or may not be tied to the sedative effect. This is why I squeezed in one last test.
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very cool phaeton, love this thread 
and thanks for the kill-a-watt totals on the 336X Pro...
i will use that to update my LED Mythbusters thread
and
my LED Retailers thread
and thanks for the kill-a-watt totals on the 336X Pro...
i will use that to update my LED Mythbusters thread
and
my LED Retailers thread
Was checking why only some of the hairs were reddish, I found out.
I had mistagged some clones, found a tray of sativa that said indica in the mainroom.
The tray of two under UVB has an indica and a sativa sharing the tray. I always thought that was unworkable unless the plants were identical clones.
This pair does not care. The sativa has long straight pistols and no reddish core, mostly seems to completely ignore the UVB. The first sativa test was that way also.
The indica still has the added red in the hairs, and they are mildly stunted. This is a good sign, the last test the hairs were red in caused mandatory napping. The mainroom bud does not put me to sleep.
But anyway, this is a twofer side by side. Can't get much samer than sharing the tray.
Has anyone else grown two different strains in the same pot with the roots mixing? What happened?
I have always heard the plants would go into unlimited stretch, this is not happening with these two plants.
I had mistagged some clones, found a tray of sativa that said indica in the mainroom.
The tray of two under UVB has an indica and a sativa sharing the tray. I always thought that was unworkable unless the plants were identical clones.
This pair does not care. The sativa has long straight pistols and no reddish core, mostly seems to completely ignore the UVB. The first sativa test was that way also.
The indica still has the added red in the hairs, and they are mildly stunted. This is a good sign, the last test the hairs were red in caused mandatory napping. The mainroom bud does not put me to sleep.
But anyway, this is a twofer side by side. Can't get much samer than sharing the tray.
Has anyone else grown two different strains in the same pot with the roots mixing? What happened?
I have always heard the plants would go into unlimited stretch, this is not happening with these two plants.
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The plants are kicking along, the sativa is responding very well. Surprise to me, specially with two strains sharing root space.
Even at reduced UVB considerable stunting is going on. Have not had sativa results to smoke yet, but the indica 'sleepy' is worth the reduced yields.
Pic 1, UVB indica, perhaps some of the stunting this time is from sharing the container.
Pic 2, UVB sativa.
Pic 3, sativa from the main budroom, way bigger.
Even at reduced UVB considerable stunting is going on. Have not had sativa results to smoke yet, but the indica 'sleepy' is worth the reduced yields.
Pic 1, UVB indica, perhaps some of the stunting this time is from sharing the container.
Pic 2, UVB sativa.
Pic 3, sativa from the main budroom, way bigger.
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